Picker mechanism for looms



Jul 3, 1928.. v 1576;214-

6; D. BROWN PICKER MECHANISM FOR LOOKS I Fil'd Nov. 18, 1921 2 Sheets-5mm 1 Fig.1.

lnvehTor. Cqr! D. Brown July 3, 1921s.

C. D.-BROWN PICKER MECHANISM FOR LOOMS Filed, NOV. 18, 1927 2sheets-sheaf 2 f CARL i5. BROWN,

l anisin ofaloomJy i i 1;

It is very.important,,especially with cert- Patented July 3, 1928.

TION, OF 'HOI'EDA'LE,MASSACHUSETTS, A coneoimmonoFiMAmE 1 'IfIGKEIt 7MECHANISM ho'nf toomsi fipplieation fil'ed november; 13;. 1927. SerialNo."234,1i4. f

This inventionlrelates' to the teiini classes of fabrics that theshuttle; shall i thef shuttlenmay be thrown against theshedWl'lI-ht'SLlffibltBIlll iiorce to -mark the. fabricon even todamage: orbreak the'watps. T1 In the Weaving of silk orrayon 'faloric's,1thedamage caused to the fabricas theQresul-t o'ffm-erks vmade bytheshi-ittle in its travel through the shedvmiust-be considered. I o

It istheobject' of the present invention toprovide a picker mechan'ism:of such e character th at it will not only have'no; tendcncyduringthepicking: movement to deflect the shuttle from a: true tight linepath,but

thatit will: also act to insure thev Bight line movement of the shuttle;

' n is the object ot the intention 'furthei:

toxp-rovide a picker mechanisni of a character that will leave the sidewallsof: the 's11 uttle I box intact so that they Will have eperfectbearingengagementwith the side'Wa-llsof the shuttle. y Y t It is theobject ofte invention, further to provide a picker mechanism eta simpleand eflicient 7 of construction designedand ;,ca-p2tble 0t securing thedesired results:

W 'lllese and othei; objects and features of the intention will appearmore fullyjroin thesaccompanying description and. drawings and: will beparticularly pointedout in the and the; upper end otthe pickersticln vclaims; I

the-invention is-capalole' of app l i to? a widevariety 'of'loomstructures, and: as

such: structuresaire Wel-li known; and. familiar V to those skilled inthe Mt; it will be su-fficient to illustrate and: describe; a preferredforni 04% the: invention: in; connection with a single Well known typeofloom and to illustrate Y onlyithose portions'of the loom directly con-iceienediwiththeintention. i '1 is: front elevationajofr the therein; 1

1 -With theshuttle-shown in full. 7 Fig.- 3 is-atiew in perspective ofthe picker taken- ,on the r 0f;- be picked firom its box, accuratelyalong a; right li ne so that it shallnotbe deflected firorn the" racewayeither Vertically {on hori If deflected even toa slight extent,

hand endvofziv DOEtlOIla of'ajloom with 1 3 pzzefetrecl formiofl theinventionjeinbodied in :h-onizontal crosssectiojnc the; pmkengtude l'0d' with the guide; rod shown in full. 1 .I-he r ght -h and: end" ofthe loony is shown,

ut t llibea e tbod that t eeonstruc lay providesfthf raceway forutheshutt-le or" HOPEDALE, MAssA'cHUsETTs;'As'stitog To ijm g @3 93 1 a vleie n h wn i the form et race p aten secuned to :the 59p of the lay and.presenting a smooth travels.

At. the; endifot the: idy tilt, shuttle; comprising the front and rearWalls or binder c suitably taced at Spend may be mounted on the lay inany suitable or usuelmannenand comprising. also thje 7 upper gui dlngmall; 9 with' ts; fac ng 5 sui face upon; Which -the shuttle With this-inwention the front endyearwiplls j 613m V inechan'ism ls:concernedalthough-l ef course, a, suitable aper'tune" m he proyidedfori. a f'eelen Inechanisnu :These Wall'sp therefone'f n: left intztctso. fazr zisth'efpicke fit snugly against the shuttleand aflordla.

perfect. hearing engagement i th; the ."shuttle; llQflml'e ,V ,lmovement ot the picker...

pi k t s-pm bnl bi k tm hide, or. Lother suitable material, havingaverticailwweb 11', a cylindrical,'headllfzgand a,v cylindrical foot 13.The head 12 engages the point eithe shuttle 14:- at; the endofitscentral f The- Web 11 ofthe pickerri des i'n 'and is guided by e.longitudinell slot; '15

slotrin,either beingfiequired i formed in; the iracewg y or race plateextending longitudinally 7 thereof and par;

allel with; the sidl wal s 0t the fshuttleg II-he foot on lower endorfthe picker is guided on. at rod 16 secured to the; lay andextendinglongitudinally thereof beneath the slot-15 i i I andi'jpa'ralleltl'lGI-{GWl'ElL The I mounting: for

therod:-rl6- is fshownseparately in fliigqfi At theinn'er end atsuitahl'eflbrecket 1;7; on the lay; is" provided with 2 conical' bore orseat 18 into Which fits the conical endZl'Q-ofQ-the rod 16;: 'The 'outerendvofthe lziy'hns12L suitaihl'e bracket. portion 20- provided Within r.cylindrical: aperture 21: fitting; the outer end of the rod 16 and thisaperture is threaded i at its outer end to receive the threaded setscrew 22. When the set screw 22 is screwed in,.it will be seen that. therod 16 is forced firmly into t-he'fseat 18f and thus held accurately inposition and a lock nut 23 onthe set screw 22 insures the permanentposition of the' rod.

It will thus be seen that the picker is very accurately guided bythe rod16 at its lower end andthe-slot atits upper end so that it can only movelongitudinally of the lay with' its shuttle engaging point moving on aright line parallel with the raceway and parallel with the side wallsofthe shuttle i The picker is given this longitudinal j movement by aconstruction which is so arranged as to haveno tendency to deflect thepicker'ffrom this right line movementjand;

consequentlyno tendency to deflect theshuttle'from its right linemovement. This result is secured by mounting the picker stick entirelybeneath the raceway, by having the 7 to a rocker shoe 25 of afamiliartype which beneath the racewayandextends'in front of is'soshaped that asit rocks on the surface of the rocker support 26, the upper end of thepicker stick, where it engages the picker, will move in a horizontalpath. The, picker stick is shown as given its swinging movement' intheplane of the lay and parallel with the path of the picker by theusual connection 27 extending to the usual pick mo tion. It willbenotedthat the picker stick 2% swings in aiplane immediately adjacent toand parallel with the picker, as 'shown'in Figs. 2 and 3-. At its'upperend, the picker stick is loosely connected to the picker so that it willnot have any tendency to deflect the picker from its right'linemovement.

" The connection between the picker stick 7 and picker may, of course,bevaried in form,

but a simple and preferred connectionfor securing. the desired resultsis illustrated.

A lug 28"'projects laterally from the picker the picker stick. This lugmaybe of any suitable material and preferably of the same material asthe'picker and is shown as fitted in a slot in the picker and threadedover the rod 16. Theface29 of this lug opposite the picker stick; andcooperatingtherewith is vertical and convex so that, notwithstanding theswinging movement of the picker stick, the picker stick engages thislugin the'same horizontal plane.'

A strap 30 is secured by screws 31' to the web of the picker and extendsaround its outer end and around the end of the pickerthe picker stickand around the lug 28 and is secured to the inner face-'of the lugscrews 32. Thus the upper end of the picker stick is loosely embracedand held in its proper rela tion to the picker and the lug 28..

Any suitable means may be provided for checking themovement of thepicker stick. An ordinary type of picker check is shown at 33 secured tothe lay and in addition a bufler in the form of a sinuous strap 34threaded on the guiding'rod '16 at its inner end is illustrated, also abuffer washer at I the outer end of the rod. v 7

It will thusbe seen that all the desired advantages are secured by thisinvention. The movement of the picker in a right line longitudinally 'ofthe lay and parallel with the raceway and the shuttle box walls issecured by the construction of, and guiding means for, the pickeremployed. The location-and movementof the picker stick and itsconnection to the picker are suchthat there is no tendency to deflectthe picker from this right line movement. The side walls of the shuttlebox are left intact so far as the picker mechanism is concerned.Opportunity is afforded forfthe use of any desirable picker check andbuffer. The construction is of a simple, rugged and efiicient naturepThemovement of the shuttle'when picked from the box is therefore, so far asthe picker mechanism is concerned, certaln to be in a right line alongthe raceway and into the opposite box without deflection from itscourse. 1 w

Having thus described the invention, what is claimed as new, anddesired'to be secured by Letters Patent, is: I

1. A loom comprising a lay having a race- 7 way, a shuttle box on thelay at the end of the raceway, a picker extending above and below theraceway and mounted on'the lay to slide longitudinally thereof with itshead moving parallel to the raceway and 'midway of andparallel to theshuttle box walls, and a picker stick located entirely beneath theraceway and swinging in a plane parallel to and immediately adjacent tothepicker and loosely connected at its upper endto the picker to impartlongitudinal movement thereto. i

2. A loom comprising a lay having a raceway, a shuttle box on the lay atthe end of the raceway, a picker extending above and below the racewayand mounted on the lay to slide longitudinally thereof'with its head lugprojecting'laterally from the picker. be-

Yneath the raceway and presenting a vertical convex face, a picker sticklocated entirely beneath the raceway and swinging in a plane parallel tothe picker, meansv for loosely connecting the upper end of the pickerstick to opposite'the convex faceof the lug to cause the picker stickacting against I the lug to impart longitudinal movement to Y thepicker.v

3. A loom comprising a lay having a raceway, a shuttle box on the lay atthe end of the raceway, a picker, extending above and j below theraceway and mounted on the lay to slide longitudinally thereof with itshead moving parallel to the raceway and midway of-and parallel'to theshuttle box walls, a picker stick located entirelybeneath the race wayand swinging in a planeparallel to the picker and immediately adjacentthereto, a

lug projecting laterally from the picker in front of the upper end ofthe picker stick,

and a strap extending from the picker I 7 around the'upper end of thepicker stick and acting loosely to connect the picker stick to thepicker and maintain the picker below the raceway in a plane normalto theigitudinally thereof and guided in its sliding movement to maintain theshuttle engaging 130 point of its head on a line parallel with racewayand mounted on the lay to slide lonv the raceway, and a picker sticklocated entirely beneath the raceway and swinging in a plane parallel toand immediately adjacent the picker and loosely connected at its upperend to the picker to impart longitudi nal movement thereto.

5. A loom comprising .a lay having a raceway, a shuttle box on thelay atthe end of nal movement thereto.-

the raceway, a picker extending above and below the raceway in a plane.normal to the raceway and mounted on thelay to'slide longitudinallythereof and guided in its sliding movement to maintain the shuttleengaging point of its head on a line parallel with the raceway, a pickerstick locatedentirelyjbeneath theraceway and swinging in a planeparallel to and immediately adjacent the picker and loosely connectedat'its upper .end to the picker," andmeans for bodily q moving thepicker stick lengthwise during its swinging movement to cause its pointof engagement with the picker to move parallel with the raceway, wherebythere is no tendency on the part of the picker stick to I impartanything other than longitudinal movement to the picker.

.6. A'loom comprising a lay havingaaracee.

way, a shuttle box on the lay at the end of the raceway,"a longitudinalslot through the a raceway at the shuttle box end, a rod secured to thelay and extending longitudinally thereof beneath and parallel with thesaid slot, a picker having a bore at its lowerend v fitting the .rod,the said picker extendingthrough and guided by the said slot whereby itshead is accurately guided in its'moveinent parallel with the raceway'and 'longia tudinally thereof, and a picker stick located i entirelybeneath the raceway and swinging in a plane parallel to andimmediatelyadjacent the picker and loosely connected at its upper end to the pickerto impart longitudiv In testimony whereof, I have name to thisspecification.

CARL D.

BRO NQ- signed my l

